I actually like this one more than the Kick You in the Ass Change Everything in the Plot episodes like Severed Dreams. When the foundation is so strong, it's relatively kind of easy to make one of those huge episodes be good. But it's eps like Rock that make it all possible.

More importantly, this one just gets under my skin more. It's more sly and intricate and intimate. Come to think of it, this may well be a contender for my favorite episode.